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Check
code
Outdoor
LED display
Check and troubleshooting
(Item without special mention Indicates part of outdoor unit.)
[F15]
[Miswiring of heat exchanger sensor (TE, TS)]
Is mounting status of
TE and TS sensors correct?
NO
Correct sensor mounting.
NO
Correct connector.
Replace TS sensor
Check outdoor P.C. board.
Failure → Replace
[F31]
[EEPROM trouble]
YES
Is connection of CN600 correct?
Is resistance value of TS sensor correct?
YES
NO
Correct connector.
Replace TE sensor
Check outdoor P.C. board.
Failure → Replace
Is connection of CN601 correct?
Is resistance value of TE sensor correct?
YES
[H01]
[Compressor break down]
Is power supply voltage normal?
AC198 to 264V
NO
Correct power supply line.
NO
Check wire connection
and correct it.
YES
Is wire connection correct?
Compressor lead
(P.C. board side, Compressor side),
Reactor lead, Power supply lead
YES
NO
Remove and improve
the cause of overload.
Check outdoor P.C. board.
Failure → Replace
* When replacing outdoor P.C.board, replace
the fuse.
Does an abnormal overload happen?
YES
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